Machine fob hulling bice



A. M. GEORGE.

Ri'ce Huller.

Patented March 9, 1858.

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' UETTED sTATEs A. M. GEORGE, OF NASHUA, NEW AMPSHIRE.

VIACI-IINE FOR HULLING RICE.

Specification of Letters Patent No. 19,557, dated March 9', 1858.

To all whom t may concern.'

Be it known that I, A. M. GEORGE, of Nashua, in the county of Hillsboro and State of New Hampshire, have invented a new and Improved Machine for I-Iulling Rice; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, vmaking a part of this specification, in which- I Figure l is a vertical section of my iinprovement; in Fig. 2, showingthe plane of section. Fig. 2 is a horizontal section of the same; (y) in Fig. 1,showing the plane of section. Fig. 3 is a transverse section of one of the scouring:cylin.

in Fig. l, showing the plane ders; (a) (a) of section.

Similar letters of reference indicate corresponding parts in the several figures.

My invention consists in the employment or use of a hulling device and fan, constructed and arranged as will be hereinafter fully shown and described, whereby lthe grain will be perfectly hulled and winnowed.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A, represents a bed or platform, which may be of rectangular shape, and B represents a vertical shaft, the lower end of which is stepped at the center of the bed or platform, as shown at (a). Y

On the upper part of the shaft B, a conical head C, is secured; the said head being fitted within a corresponding or conicalshaped shell D, which is permanently secured on the inner ends of frames E, which are placed radially on the bed or platform A. The frames E, are of rectangular form, and placed uprightly on the bed or platform, as shown plainly in Fig. 1, in which two frames are shown, four frames being used. The uprights (b) of the four frames are shown in Fig. 2.

Between the inner ends of the frames E,

at their upper parts a concave dish or basin Gr, is secured. This dish or basin forms the bottom of the shell D, and the shaft B passes up through the center of the dish or basin G, as shown clearly in Fig. l.

The upper end or part of the shell D, has a hopper H, upon it, said hopper being of inverted conical form, and having a crosspiece (c) fitted in its lower part; the said cross-piece forming a bearing for the upper partof the shaft B.

I, is a driving pulley, placed on the upper end of the shaft B.

In each of the frames E, a hollow cylin- 'der J, is placed. The. shafts (6') of these `@cylinders J, pass through the uprights (b) of the frames, E; and the inner ends of the Ishafts (b) have beveled toothed wheels (c) yupon them; said wheels gearing into a wheel (d) on the lower end or part of the shaft B.

Between the inner ends ofthe frames E, an annular chamber K, is placed; and a vertical tube L is placed on thebed or platform A; the upper end of said tube .communicating with the annular chamber K. i M, represents a blast fan, which is in- ;closed within a case N, said case communicating with the vertical tube or support L.- g The fan M, is driven by a belt O, from a'pul ley on the lower end of the shaft B.

To the lower part of the dish or basin G,f yfour discharged tubes or spouts Q, are at` tached; the outer ends of these tubes or spouts rest upon the annular chamber K,

and directly over four spouts R, the inner Aends of which are secured to the annular chamber K, the outer ends of the spouts being directly over openings (e) made in the cylinder J. Through the annular chamber K, and directly over the inner end of each spout or tube R, an opening (f) is made, as shown clearly in Fig. 2.

On each shaft (b) of the cylinders J, and within said cylinders, radial arms S, are placed, see Fig. 3; these arms move or rotate with the shafts and cylinders, and have a roughened or corrugated surface. One or more sets of arms may be placed within each cylinder, as occasion may require.

The operation is as follows: The rice to be hulled is placed within the hopper'I-I; and the shaft B being rotated in any proper manner, the rice, in passing down between the rotating conical head C, and shell D, has the hulls stripped from the kernels or grains. The external surface of the head C and the internal surface of the shell D, are roughened or corrugated so as to form a tooth or bur, to detach and strip the hulls from Athe kernels or grains. The hulls and kernels or grains pass down through' the tubes or spouts Q, into the spouts R; and as the grain falls from the ends of the tubes Q, into the inner ends of the tubes or spouts R, the hulls are blown from theV kernels or grains by jets or blasts of air, which issue from the openings or apertures in the annular chamber K. The kernels or grains pass through the spouts R, into the cylinders J said cylinders being stationary while being filled with the hulled grain; the Wheels (c) being thrown in and out of. gear with the wheel in any proper manner. The blast is of course generated by the fan M. When the cylinders J, are filled or when the necessary quantity of hulled grain has passed into each cylinder, the wheels (o) are thrown in gearv with the wheel (62); the openings (e) being closed by slides; and as the cylinders J rotate, the grain is polished and rendered perfectly smooth. rllhe roughened arms S, within the cylinders J, cause the grain to be subjected to a greater degree of attrition than if they were not employed, and consequently they materially aid in polishing the grain and giving it a beautiful, pearl-like color or appearance. When the cylinders J, are in operation, the hopper H is not supplied with rice.

The above-described machine does its Work perfectly; not only hulling the rice but polishing it. The machines usually employed merely detach the hulls from the kernelsor grains; the said kernels or grains passing from the machine in a rough state, and, in many cases, much bruised and broken.

I would remark that the conical head C, may be adjusted higher or lower within the shell D, by raising or lowering the shaft B,

in any proper manner; so that the rice may be subjected to a greater or less degree of pressure as itl p'asses down between the head and shell. I would also remark that the hop- :per Hlmay be kept lledvwith rice at all times by having a slide A fitted in each tube Q, and having a certain number of the cylinders J rotating while the others are stationary and being filled; the tubes of the rotating cylinders of course being closed, while the tubes of the stationary ones are open, and rice passing into them.

I do notr claim, separately, or in themselves considered, the conical rotating head C, and shell D, for they have been previously used for similar or analogous purposes; but,

Having thus described my invention, what I claim as new, and desire to secure by Letters-Patent, is:

' The arrangement, as herein shown and described, of the conical head C, shell D, fan M, and annular blast or wind chamber K, for the purposes specified.

A. M. GEORGE.

Witnesses i N. MOKEAN, 

